Finding the Fourth Proportional to 12,150.74, 18,196.68 and 6,940.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,150.74 : 18,196.68 = 6,940.82 : x
2. Step 2: Convert to fraction form
   12,150.74/18,196.68 = 6,940.82/x
3. Step 3: Cross multiply
   12,150.74x = 18,196.68 × 6,940.82
4. Step 4: Simplify right side
   12,150.74x = 126,299,880.48
5. Step 5: Solve for x
   x = 126,299,880.48/12,150.74
6. Step 6: Final answer
   x = 10,394.42